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HORIZON ENVIRONMENTAL INC. <br /> 4970 Windplay Drive, Suite 5 Boring No. SB-2 <br /> EI Dorado Hills, California 95762 <br /> (916) 939-2170 -- Fax: (916) 939-2172 <br /> Drilling Company: All Well Abandonment Project No.: 1641.01 <br /> Date Drilled: 10/22/14 Site: CST 3641 <br /> Drilling Method: Hollow Stem Auger Location: Stockton, CA <br /> Sampling Method: Split-Spoon Geologist: Rexford Smith <br /> o m F0 Soil Description/ <br /> Y a� o o a" c =C1 <br /> Z S011 <br /> LL z 0 N � � En Comments Boring <br /> o� a o t In CU coC g <br /> m <br /> U)– <br /> A <br /> a <br /> 0 <br /> Asphalt 3 inches/concrete 6 inches/aggregate base <br /> 1 <br /> 2 SILTY CLAY (CL): dark gray to black, moist, no odor <br /> 8-inch diameter <br /> 3 bore hole <br /> 4 ———————————————————————————————— <br /> Ln 7 neat cement <br /> 5 c� 12 5 <br /> 14 18 g 06 SILTY SAND (SM): yellowish-brown, very fine to medium-grained <br /> sand, trace clay, medium dense, slightly moist, no odor <br /> 7 <br /> 8 <br /> 9 <br /> 18 <br /> 10— co 50/6 12 g p 10 SILTY SAND (SM): yellowish-brown, very fine to fine-grained <br /> 11 sand, trace clay, very dense, moist, no odor <br /> 12 <br /> 13 <br /> � 14 <br /> 23 <br /> 15 15 <br /> m 50/5 11 7 0 SILTY SAND (SM): yellowish-brown, very fire to fine-grained <br /> � 16 <br /> sand, very dense, slightly moist, no odor <br /> 17 <br /> 18 <br /> 19 <br /> 20 0 500/6 12 10 0 20 SILTY SAND (SM): yellowish-brown, very fine to <br /> Co medium-grained sand, very dense, slightly moist, no odor <br /> cn 21 <br /> 22 <br /> 23 <br /> 24 <br /> 25 N 20 25 SILTY SAND (SM): grayish-brown, very fine-grained sand, very <br /> m 50/5 11 9 0 dense, slightly moist, no odor <br /> U7 26 <br /> 27 Total Depth =25 feet <br /> 28 <br /> 29 <br /> 3 30 <br /> SB-2: Page 1 of 1 <br />